/Engine/Source/Runtime/CoreUObject/Public/Misc/PackageName.h
Tries to convert object path with short package name to object path with long package name found on disk (very slow)
True if succeeded. False otherwise.
static bool TryConvertShortPackagePathToLongInObjectPath ( const [FString](API\Runtime\Core\Containers\FString) & ObjectPath, [FString](API\Runtime\Core\Containers\FString) & ConvertedObjectPath )